Here is the turn signal switch I like from
http://turnswitch.com/Turnsignal.htm. It cancels by time and the timer extends while your foot is on the brake. Has an emergency flasher feature. Uses stock wiring harness and only a few additional wires required(beyond the 12v to the unit), one parking light, one rear stop light, one to headlight switch, one brake light switch. I have it on both my 36 and just installing it on my 41.